The unit was accentally plug into a 220V outlet. I already replaced the fuse that was blown out, but the unit doesn't work. So I decided to take servicing the electronic part of the unit, and found out that 2 of the IC's were blown out but the part number was not defined on the casing on the piece so I can not replaced it. I am looking for the schematic diagram and parts for this Dell MMS 5650. Looking forward for a solution.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
if your computer came with
a motherboard disc the sound drivers could be on it click start control panel
administrive tools computer management device manager scroll to sound,video and
game controllers you might see a yellow question mark? Right click to reinstall
drivers click start control panel
sounds and audio,volume,advanced,speakers make sure you have selected the :((appropriate speakers)):
also audio you will find 3 drop down lists make sure you have the correct
settingsthere also click start control panel
sounds and audio devices select advanced there might be a tick in the mute box
untick it click start control panel
sounds and audio devices you can adjust the volume there also select speaker
volume you can change your settings there you can also tick in the box place
icon in taskbar if his does not fix the
click start control panel sounds and
audio,volume,advanced,speakers select the appropriate speakers from the drop
down list or navigate to the device manager scroll to system devices + to
expand,system speaker right click properties then select use this device
(enable) also you might check the speakers plug/outlet is
usually at the back of the computer you will have to open up the computer
to check the lead attached to the rear of the input plug make sure the
connection is good try cleaning your computer of dust using a fine air blower from a
compressor making VERY sure that there is no MOISTURE in the air line
specifically around the sound card and the CPU central processing unit dust
causes static to build up in a computer hope this
The fact that everything but the power amp is still working, it could be only a fuse protecting the output that needs replacement although this fuse is probably circuit-wise after the main fuse you have already replaced and could be soldered on the board.
Worst case, the output modules are blown and require replacement and depending on the power level it may be worth repairing instead of replacing.
Most modern electronic devices can be set or adapted to line voltages from 100-240 Volts and a good percentage of the devices, using the common switched mode power supply don't need any changes made by the user since they can be inherently 'auto-ranging.'
the speak power system may be burnt out, to check that you need to plug the speakers into a wall outlet and connect the speaker to a boombox (CD player) audio jack out. play some music on the cd player.
if still issue no sound...then check if the power cable of speaker is ok.
take it to a tech